# N412UT: 2025 Airbus Helicopters EC135 P3 - Status: Valid registration - Airframe: [Airbus Helicopters EC135 P3](https://openairdocs.org/model/airbus-helicopters-ec135-p3) (registry code 8680151, 7 seats) - Engine: [Pratt & Whitney Canada PW206B3](https://openairdocs.org/engine/pratt-whitney-canada-pw206b3) (registry code 51948) - Data sheets: [TCDS H88EU](https://openairdocs.org/tcds/H88EU) (Airbus Helicopters Deutschland GmbH (AHD)), [TCDS E42NE](https://openairdocs.org/tcds/E42NE) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: 2319 - Year built: 2025 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, normal - Airworthiness date: July 1, 2026 - Certificate issued: February 18, 2026 - Expires: February 28, 2033 - Mode S code: A4DD62 - Registered owner: [Med Trans Corp](https://openairdocs.org/faa-owner/MED%20TRANS%20CORP) - Location: [Denton, TX](https://openairdocs.org/faa-place/TX/Denton) - Owner type: Corporation - Owner's area on the map: 33.2276° N, 97.1843° W: Placed by OpenAirDocs at the center of ZIP code 76207, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=412UT - Page: https://openairdocs.org/aircraft/N412UT From the FAA registry file of October 22, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 31 in force ### Matched by airframe (Airbus Helicopters EC135 P3) - [AD 2026-20-06](https://openairdocs.org/ad/2026-20-06): Main rotor gearbox · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 6 more. Effective Oct 13, 2026 - [AD 2026-17-05](https://openairdocs.org/ad/2026-17-05): Cabin Equipment/Furnishings · Airbus Helicopters H160-B, EC225LP, AS 365 N3 and 18 more. Effective Oct 2, 2026 - [AD 2026-08-10](https://openairdocs.org/ad/2026-08-10): Passenger compartment equipment · B/E Aerospace Fischer Medical Seat 230/305, EC135P1, EC135T1 and 19 more. Effective May 11, 2026 - [AD 2026-02-01](https://openairdocs.org/ad/2026-02-01): Tail Rotor Drive Shaft · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 6 more. Effective Feb 26, 2026 - [AD 2026-03-02](https://openairdocs.org/ad/2026-03-02): Rotorcraft Tail Boom · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 6 more. Effective Feb 17, 2026 - [AD 2025-18-04](https://openairdocs.org/ad/2025-18-04): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 9 more. Effective Oct 21, 2025 - [AD 2025-13-06](https://openairdocs.org/ad/2025-13-06): Tail Rotor Control System · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 6 more. Effective Jul 18, 2025 - [AD 2025-04-10](https://openairdocs.org/ad/2025-04-10): Emergency equipment · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 10 more. Effective Mar 24, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-17-01](https://openairdocs.org/ad/2024-17-01): Main Rotor Control · Airbus EC135P1, EC135P2, EC135P2+ and 6 more. Effective Nov 4, 2024 - [AD 2024-04-01](https://openairdocs.org/ad/2024-04-01): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 8 more. Effective Apr 19, 2024 - [AD 2024-04-10](https://openairdocs.org/ad/2024-04-10): Tail Rotor Blades · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 6 more. Effective Mar 19, 2024 - [AD 2023-05-09](https://openairdocs.org/ad/2023-05-09): Instrument System Wiring · Airbus Helicopters Deutschland EC135P3, EC135T3, MBB-BK 117 D-2 and 1 more. Effective Mar 31, 2023 - [AD 2022-17-01](https://openairdocs.org/ad/2022-17-01): Air Conditioning System · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 5 more. Effective Sep 27, 2022 - [AD 2022-10-51](https://openairdocs.org/ad/2022-10-51): Flight Control System · Airbus Helicopters AS350B, AS350B1, AS350B2 and 22 more. Effective Jun 7, 2022 - [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2022-02-19](https://openairdocs.org/ad/2022-02-19): Flight Compartment Equipment · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 5 more. Effective Mar 17, 2022 - [AD 2022-01-03](https://openairdocs.org/ad/2022-01-03): Fire Bottle, Portable · Airbus Helicopters AS332C, AS332C1, AS332L and 35 more. Effective Mar 7, 2022 - [AD 2021-24-17](https://openairdocs.org/ad/2021-24-17): Tail rotor blades · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 5 more. Effective Jan 18, 2022 - [AD 2021-24-05](https://openairdocs.org/ad/2021-24-05): Cargo Compartments · Airbus Helicopters Deutschland EC135P2+, EC135P3, EC135T2+/EC635T2+ and 1 more. Effective Jan 14, 2022 - [AD 2021-21-01](https://openairdocs.org/ad/2021-21-01): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland EC135P1, EC135P2, EC135P2+ and 5 more. Effective Dec 10, 2021 - [AD 2021-17-17](https://openairdocs.org/ad/2021-17-17): Cabin Equipment/Furnishings · Airbus Helicopters EC135P3, EC135T3, MBB-BK 117 C-2 and 32 more. Effective Nov 22, 2021 - [AD 2021-22-07](https://openairdocs.org/ad/2021-22-07): Fire Bottle, Portable · Airbus A319-111, A319-112, A319-113 and 127 more. Effective Nov 18, 2021 - [AD 2021-16-10](https://openairdocs.org/ad/2021-16-10): Tail Rotor Blades · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Oct 13, 2021 - [AD 2021-13-05](https://openairdocs.org/ad/2021-13-05): Tail Rotor Control System · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Aug 11, 2021 - [AD 2021-07-12](https://openairdocs.org/ad/2021-07-12): Rotorcraft Flight Control · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective May 11, 2021 - [AD 2021-09-07](https://openairdocs.org/ad/2021-09-07): Rotorcraft Flight Control · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective May 10, 2021 - [AD 2021-03-04](https://openairdocs.org/ad/2021-03-04): Fasteners, Tail Rotor Drive Shaft · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Mar 29, 2021 - [AD 2020-26-03](https://openairdocs.org/ad/2020-26-03): Rotorcraft Flight Control · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Jan 22, 2021 - [AD 2020-22-04](https://openairdocs.org/ad/2020-22-04): Tail Rotor Drive · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Nov 18, 2020 - [AD 2018-07-01](https://openairdocs.org/ad/2018-07-01): Main Rotor Gearbox · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective May 3, 2018 ### Matched by engine (Pratt & Whitney Canada PW206B3) None in force. ### Historical (superseded or no longer in force) - [AD 2021-11-22](https://openairdocs.org/ad/2021-11-22) (historical): Tail Rotor System · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Jul 16, 2021 - [AD 2021-11-17](https://openairdocs.org/ad/2021-11-17) (historical): Main Rotor Control · Airbus Helicopters Deutschland EC135P3, EC135T3, EC135P1 and 5 more. Effective Jul 16, 2021 - [AD 2019-17-02](https://openairdocs.org/ad/2019-17-02) (historical): Rotorcraft Flight Control · Airbus Helicopters Deutschland EC135 P1, EC135 P2, EC135 P2+ and 5 more. Effective Sep 25, 2019 - [AD 2019-05-06](https://openairdocs.org/ad/2019-05-06) (historical): Cabin Equipment/Furnishings · Airbus Helicopters Deutschland EC135 P1, EC135 P2, EC135 P2+ and 5 more. Effective Apr 17, 2019 ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N412UT. ## NTSB investigations on N412UT not matched to an aircraft (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB ATL91IA014](https://openairdocs.org/ntsb/ATL91IA014), Nov 3, 1990: Bell 412 (N412UT), Knoxville, TN, incident, minor damage. Probable cause: THE PILOT'S FAILURE TO SEE AND AVOID THE WIRES PRIOR TO THE COLLISION. FACTORS IN THE INCIDENT WERE THE FAILURE OF THE GROUND PERSONNEL TO ADEQUATELY INSPECT THE LANDING ZONE, THE PRESENCE OF HIGH… ## FAA accident and incident reports None matched to N412UT. ## Reports on N412UT not matched to an aircraft (1) They name N412UT, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Incident 19901102048589I](https://openairdocs.org/incident/19901102048589I), Nov 2, 1990: Bell 412 (N412UT), Knoxville, TN. Struck unseen wires on medic flight after liftoff from freeway. Landed safely. Power poles hidden by trees,building ## Service difficulty reports None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. ## STCs that may be installed (OpenAirDocs) (43) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Airbus Helicopters EC135 P3) - [STC SR12474NY](https://openairdocs.org/stc/SR12474NY): Installation of replacement windows. Tech-Tool Plastics, Inc - [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems - [STC SR11844CH](https://openairdocs.org/stc/SR11844CH): Installation of Heli-Preheat Kit, p/n TA3391-1 for 115 volt application. Hartzell Propeller LLC - [STC SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc - [STC SR00521SE](https://openairdocs.org/stc/SR00521SE): Installation of Geneva Aviation Audio System. AEM USA Inc - [STC SR00202IB](https://openairdocs.org/stc/SR00202IB): Installation of Emergency Medical Services (EMS) Equipment, either P/N 135-0238317-501 or P/N 135-0238317-502. AEROLITE AG - [STC SR12092IB](https://openairdocs.org/stc/SR12092IB): Manufacturing and Installation of Cargo Hold Nets. ICARUS AERO INC - [STC SR12065DE](https://openairdocs.org/stc/SR12065DE): Installation of Honeywell 5G Bandpass Filter into existing KRA 405B Radar Altimeter Systems. QAI Aviation Inc - [STC SR04842NY](https://openairdocs.org/stc/SR04842NY): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS). Sterling Helicopter - [STC SR04711NY](https://openairdocs.org/stc/SR04711NY): Replacement of Luminator LS400 LED searchlight (steerable landing light). Sterling Helicopter - [STC SR11343DS](https://openairdocs.org/stc/SR11343DS): Installation of TDFM-9000 Communication System. Airbus Helicopters Inc - [STC SR11857IB](https://openairdocs.org/stc/SR11857IB): Installation of SkyTrac ISAT-200A Flight Following / Satcom System. SkyTrac Systems Ltd - [STC SR01790SE](https://openairdocs.org/stc/SR01790SE): Installation of Skidtube and Skidtube extension. Dart Aerospace USA Inc - [STC SR00182IB](https://openairdocs.org/stc/SR00182IB): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s). Horizon Design Services Ltd - [STC SR03704NY](https://openairdocs.org/stc/SR03704NY): Installation of Air Ambulance Technology GmbH's P/N 135-25-20-5000-600 Series Air Ambulance Equipment (EMS config) or P/N 135-25-20-5000-900 Series VIP Interior (VIP config). Air Ambulance Technology GmbH - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR00368BO](https://openairdocs.org/stc/SR00368BO): Installation of an Outerlink SATCOM Communications and Flight Data Monitoring System KIT 135-SAT-100. Outerlink Corporation - [STC SR02217SE](https://openairdocs.org/stc/SR02217SE): Fabrication of Onboard Systems Single-Hook and Double-Hook Cargo Hook Kit. Onboard Systems - [STC SR09559RC](https://openairdocs.org/stc/SR09559RC): Installation of Night Vision Goggle Compatible Interior Lighting System. REB Technologies Inc - [STC SR09105RC-D](https://openairdocs.org/stc/SR09105RC-D): Installation of a Concorde RG-390E or RG-380E/44 Lead Acid Battery. Airbus Helicopters Inc - [STC SR09919AC](https://openairdocs.org/stc/SR09919AC): Installation of a Luminator search light LS-400, LS-400M, or LS-400T. Luminator Holdings L.P - [STC SR02138LA](https://openairdocs.org/stc/SR02138LA): Installation of Utility Step Mount. Airfilm Camera Systems - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR02114NY-D](https://openairdocs.org/stc/SR02114NY-D): Installation of a Honeywell Chadwick Model 15175 VXP System. Diagnostic Solution International LLC - [STC SR02677SE](https://openairdocs.org/stc/SR02677SE): Installation of Heavy Duty Wearplates. Dart Aerospace USA Inc - [STC SR09164RC](https://openairdocs.org/stc/SR09164RC): Installation of an Airborne Emergency Medical Systems. Metro Aviation Inc - [STC SR09354RC](https://openairdocs.org/stc/SR09354RC): Installation of Metro Aviation optional equipment. Metro Aviation Inc - [STC SR09193RC](https://openairdocs.org/stc/SR09193RC): Installation of a window in the aft clamshell doors. Metro Aviation Inc - [STC SA00339BO](https://openairdocs.org/stc/SA00339BO): Installation of Single pilot IFR KIT135M-GTN-150 with Garmin GTN 650-750 WAAS Navigators. Metro Aviation Inc - [STC SR00821DE](https://openairdocs.org/stc/SR00821DE): Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and in functionality using the BendixKing KT74 Transponder and qualified position sensor and ADS-B In Receiver. Peregrine - [STC SR04276NY](https://openairdocs.org/stc/SR04276NY): Installation of the Crosstubes. Dart Aerospace Limited - [STC SR01042SE](https://openairdocs.org/stc/SR01042SE): Fabrication of Dart D135-692-011 Bearpaws. Dart Aerospace USA, Inc - [STC SR04235NY](https://openairdocs.org/stc/SR04235NY): Installation of Garmin GTS Traffic System. Maxcraft Avionics Ltd - [STC SR04228NY](https://openairdocs.org/stc/SR04228NY): Installation of Garmin HTAWS (Helicopter Terrain Awareness Warning System). Maxcraft Avionics Ltd - [STC SR09104RC-D](https://openairdocs.org/stc/SR09104RC-D): Installation of pulsed engine and gearbox chip detector system. Airbus Helicopters Inc - [STC SR03949NY](https://openairdocs.org/stc/SR03949NY): Installation of Removable Pins for Hinged Door. Airbus Helicopters Canada Limited - [STC SR01855LA](https://openairdocs.org/stc/SR01855LA): Installation of Apical Industries, Inc. Emergency Float Kit. Apical Industries, Inc. dba Dart Aerospace - [STC SR02307LA](https://openairdocs.org/stc/SR02307LA): Installation of Apical Industries, Inc. Cable Cutters Kit. Apical Industries, Inc. dba Dart Aerospace - [STC SR03277NY](https://openairdocs.org/stc/SR03277NY): Installation of a HELICOM V2 NUM System for tracking a set of flight and system parameters during operation of the rotorcraft. ISEI, Le Mercure B - [STC SR02478AK](https://openairdocs.org/stc/SR02478AK): Installation of the L-3 Aviation Products Lynx multilink surveillance system model NGT-9000() part number 9029000-20000 or Garmin GTX-345 ADS-B transponder part number 011-03302-40. Vector Aerospace Helicopter Services USA Inc - [STC SR01207SE](https://openairdocs.org/stc/SR01207SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR09163RC](https://openairdocs.org/stc/SR09163RC): Installation of a mechanically driven vapor-cycle air conditioning system. Metro Aviation Inc - [STC SR01139DE](https://openairdocs.org/stc/SR01139DE): Installation of a GPMS Foresight MX Condition Monitoring System. GPMS International Inc ## Related - Other Airbus Helicopters EC135 P3 aircraft: https://openairdocs.org/model/airbus-helicopters-ec135-p3/aircraft.md - The Pratt & Whitney Canada PW206B3 engine: https://openairdocs.org/engine/pratt-whitney-canada-pw206b3.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.